using System;
using System.Collections.Generic;
using System.Text;

namespace Logical
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine(true || false);//输出True
            Console.WriteLine(true && false);//输出False
            Console.WriteLine(!false);//输出True

            int age = 4;//年龄
            if (age < 6 || age > 60)
                Console.WriteLine("请坐爱心座！");
            else
                Console.WriteLine("请坚持一下！");
        }
    }
}